Dockerfile.test only COPYed backend/ and pyproject.toml, so the
integration test at tests/integration/test_gcode_viewer.py:63
silently pytest.skip'd in every Docker run with "gcode_viewer/
index.html not present at /app/gcode_viewer/index.html".
That was deliberate fallback behaviour for unit-test environments
where the assets are intentionally absent, but in CI it meant the
#1218 packaging regression (3D Preview returning {"detail":"Not
Found"} because the embedded PrettyGCode viewer wasn't bundled into
the prod image) had no test guarding against a recurrence — the
test that was supposed to catch it was the one being skipped.
Add COPY gcode_viewer/ ./gcode_viewer/ to the backend-test stage,
matching the path the production Dockerfile uses (static_dir.parent
/ "gcode_viewer" = /app/gcode_viewer/) so the assertion runs against
the same layout the app sees at runtime. Path-anchored comment in
the Dockerfile so a future maintainer doesn't strip the COPY as
unused.
Test Summary:
- Build tests: 3 passed (image build, backend imports, static files)
- Backend unit tests: 378 passed (9 docker tests excluded)
- Frontend unit tests: 137 passed
- Integration tests: 9 passed (health, API endpoints, persistence, WebSocket)
Changes made to fix the Docker test suite:
1. Added curl to the production Dockerfile for integration tests
2. Removed deprecated version attribute from docker-compose.test.yml
3. Added --pull flag to all build commands to ensure fresh images
4. Added explicit build step before starting integration container
5. Fixed WebSocket test to accept 200 as a valid response
6. Excluded docker-marked tests from backend unit test runs (-m "not docker")
maziggy